Support for household appliance, and household appliance

ABSTRACT

The present disclosure provides a support for household appliance and a household appliance. The support for household appliance comprises a hydraulic plate; a sheath, which is fixedly connected with the hydraulic plate; a regulating element, which is arranged in the sheath and is axially movable relative to the sheath; an accommodation chamber, which is formed by the hydraulic plate, the sheath and the regulating element; a hydraulic medium, which is arranged in the accommodation chamber and is compressed/expands depending on pressure changes to drive the regulating element to axially move in the sheath for leveling; an overall height h and a transverse length D of the support for household appliance are determined by specification parameters of a household appliance with the foot. The range defined in the embodiment of the support for household appliance can meet the leveling requirements of household appliances.

TECHNICAL FIELD

The present disclosure relates to the technical field of supportleveling of household appliances, and specifically relates to a supportfor household appliance and a household appliance.

BACKGROUND

A household appliance is generally provided with a leveling device atthe bottom of its casing. During placement of the household appliance,the leveling device is adjusted to make the household appliance stablyplaced. After the household appliance is leveled, the leveling devicecan support the household appliance to keep the household appliancestable.

Taking a washing machine for example, the existing washing machine isusually provided with bolt supports mounted at the bottom of its casingor the whole machine. Each bolt foot comprises a screw rod, a nut washerand a rubber pad, the nut washer can be screwed up and down around thescrew rod, and the screw rod can also be screwed up and down in a screwhole in a base plate of the casing. Therefore, the height of the washingmachine can be adjusted by screwing the screw rods of the bolt supportsinto different lengths of the screw holes of the base plate. Mostly, theheight of the washing machine is increased if the supports of thewashing machine rotate counterclockwise, and the height of the washingmachine is reduced if the supports of the washing machine rotateclockwise. After the height adjustment of the bolt supports iscompleted, the nut washers for preventing loosening are tightened tokeep the washing machine stable.

Although said bolt supports of the washing machine implement theleveling of the washing machine, a user still needs to carry out manualadjustment. If the washing machine has a relatively large self weight ora placement space for the washing machine is narrow, it is veryinconvenient to operate for user. Additionally, vibration of the washingmachine in a long-term working process also act on the leveling supportsand causes support failure of the supports, resulting in unlevelplacement of the washing machine.

For example, an existing 80 KG drum washing machine generally has aweight of about 80 KG which is relatively heavy, so its heightadjustment is very inconvenient for users. Even though the heightadjustment is completed, it cannot be ensured that the washing machineis adjusted to an optimal state. When the washing machine works,especially accelerates from 0 r/min to about 1400 r/min for drying,large vibration will occur if the washing machine is placed unlevel orhas a failure of support problem, which greatly influences usecomfortableness of the user.

In addition, the vibration of the unlevel washing machine may causeloosening of foot screws, which result in vertical movement of a footbracket, and such unstability may change the leveling state of thewashing machine and cause stronger vibration. Due to such viciouscircle, after the washing machine is used for a long term, the noise islarger and larger, the washing machine per se is also damaged to acertain extent, and the service life of the washing machine isshortened.

Therefore, the leveling of the existing washing machine has problemsthat manual adjustment is needed, time and labor are wasted, andprecision is relatively low.

In view of the foregoing, the present disclosure is proposed.

SUMMARY

In order to solve the above-mentioned problems, a first disclosureobject of the present disclosure is to provide a support for householdappliance, and concretely, a technical solution adopted by the presentdisclosure is as follows:

A support for household appliance, comprises:

a hydraulic plate;

a sheath, fixedly connected with the hydraulic plate;

a regulating element, which is arranged in the sheath and axiallymovable relative to the sheath;

an accommodation chamber formed by the hydraulic plate, the sheath andthe regulating element;

a hydraulic medium, which is in the accommodation chamber and iscompressed/expands depending on pressure changes to drive the regulatingelement to axially move in the sheath for leveling; and

an overall height h and a transverse length D of the support forhousehold appliance are determined by specification parameters of ahousehold appliance with the support.

Further, the overall height h and the transverse length D of the supportfor household appliance and a weight m of the household appliance have arelationship: h/D is inversely proportional to m.

Further, the overall height h of the support for household appliance isa sum of a height of the regulating element and a height of the sheathwhen the regulating element completely stretches out from the sheath;

preferably, the overall height h of the support for household appliancemeets: 5 mm 100 mm; and

further preferably, the overall height h of the support for householdappliance is 25±15 mm.

Further, a main body of the sheath is of a cylindrical structure, andthe regulating element is sleeved in the cylindrical structure and isaxially movable, and the transverse length D of the support forhousehold appliance is a diameter of the sheath;

preferably, the transverse length D of the support for householdappliance meets: 5 mm≤D≤590 mm; and

further preferably, the transverse length D of the support for householdappliance is 50±30 mm.

Further, the regulating element 104 is of a cylindrical structure, and adiameter d of the regulating element meets: 5 mm≤d≤590 mm; andpreferably, the diameter of the regulating element is d which is 50±30mm.

Further, the overall height h and the transverse length D of the supportfor household appliance meet: 0<h/D≤10;

preferably, 0.1≤h/D≤1;

further preferably, 0.4≤h/D≤0.8.

Further, at least two supports for household appliance communicate witheach other through hydraulic pipes so as to allow the hydraulic mediumto flow between the supports; and a diameter d of each hydraulic pipemeets: 0.5 mm≤d1≤h; and

preferably, the diameter d1 of each hydraulic pipe is 10±9 mm.

Further, the two supports for household appliance communicate with eachother through a hydraulic pipe to form a supports group for householdappliance, and the overall length of the supports group for householdappliance is not smaller than the width of the household appliance.

A second disclosure object of the present disclosure is to provide ahousehold appliance with the support for household appliance accordingany one of the above-mentioned items.

Further, the household appliance is a washing machine, and the overallheight h and the transverse length D of the support for householdappliance and a capacity V of the washing machine have a relationship:h/D is inversely proportional to the V.

According to the support for household appliance provided by theembodiment, based on the hydraulic principle, the regulating element canperform adaptive regulation automatically because of the fluidity of thehydraulic medium due to different pressures resulting from unflatness,the hydraulic medium stops circulating until the support for householdappliance achieves balance, and thus, automatic leveling is achieved.

The range defined in the embodiment of the support for householdappliance can meet the leveling requirements of household appliances,and the support for household appliance has a better leveling effect, isconvenient to manufacture and mount and is lower in cost. Therefore, thesupport for household appliance produced in the embodiment can beapplied to every household appliance as a standard element, and is moreconducive to marketing. According to the household appliance provided bythe present disclosure, by adopting the support for household appliance,automatic leveling is achieved. the installation is simple andconvenient, and the whole-set vibration and noise of the householdappliance are reduced.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a stereoscopic schematic diagram of a support for householdappliance according to embodiment I of the present disclosure;

FIG. 2 is a front view of the support for household appliance accordingto embodiment I of the present disclosure;

FIG. 3 is a top view of the support for household appliance according toembodiment I of the present disclosure;

FIG. 4 is a section view of the support for household applianceaccording to embodiment I of the present disclosure taken along sectionA-A in the FIG. 3;

FIG. 5 is a section view of the support for household applianceaccording to embodiment I of the present disclosure taken along sectionB-B in the FIG. 3;

FIG. 6 is a section view of the support for household applianceaccording to embodiment I of the present disclosure taken along sectionC-C in the FIG. 3;

FIG. 7 is a schematic diagram of a combination mode I of the householdappliance supports according to embodiment I of the present disclosure;

FIG. 8 is a schematic diagram of a combination mode II of the householdappliance supports according to embodiment I of the present disclosure;

FIG. 9 is an operating-principle schematic diagram of a support forhousehold appliance according to embodiment II of the presentdisclosure;

FIG. 10 is a structural schematic diagram of a supports group forhousehold appliance according to embodiment II of the presentdisclosure;

FIG. 11 is a section view of the supports group for household applianceaccording to embodiment II of the present disclosure;

FIG. 12 is a local enlarged view of an implementation mode I of athrottling structure of the support for household appliance according toembodiment II of the present disclosure;

FIG. 13 is a local enlarged view of an implementation mode II of athrottling structure of the support for household appliance according toembodiment II of the present disclosure;

FIG. 14 is an operating-principle schematic diagram of a support forhousehold appliance according to embodiment III of the presentdisclosure;

FIG. 15 is a structural schematic diagram of a supports group forhousehold appliance according to embodiment III of the presentdisclosure;

FIG. 16 is a section view of the supports group for household applianceaccording to embodiment III of the present disclosure;

FIG. 17 is a local enlarged view of an implementation mode I of athrottling structure of the support for household appliance according toembodiment III of the present disclosure;

FIG. 18 is a local enlarged view of an implementation mode II of athrottling structure of the support for household appliance according toembodiment III of the present disclosure;

FIG. 19 is a local enlarged view of an implementation mode III of athrottling structure of the support for household appliance according toembodiment III of the present disclosure;

FIG. 20 is a structural schematic diagram of a supports group forhousehold appliance according to embodiment IV of the presentdisclosure; and

FIG. 21 is a section view of the supports group for household applianceaccording to embodiment IV of the present disclosure.

Reference Signs: 100—support for household appliance, 101—hydraulicplate, 1011—port, 1012—first mounting hole, 1013—second mounting hole,1014—hydraulic nozzle, 1015—anti-off bulge, 1016—third mounting hole,1017—hydraulic plate groove, 102—hydraulic medium, 103—sheath,1031—guiding limiting groove, 1032—mounting plane, 1033—stopping endpart, 104—regulating element, 1041—first guiding limiting block,1042—second guiding limiting block, 105—rubber gasket, 106—pressingring, 107—protective ring, 1071—embedding groove, 1072—protective curvedsurface, 108—flexible accommodation body, 1081—accommodating body,200—hydraulic pipe, 300—throttling structure, 301—third throttling flowpassage, 302—fourth throttling flow passage, 303—throttling hole,400—communicating member, 401—groove, 402—sealing ring, 403—bolt,404—pouring port, 500—throttling structure, 501—first throttling flowpassage, 502—second throttling flow passage, and 503—throttling hole.

DETAILED DESCRIPTION

A support for household appliance and household appliance, provided bythe present disclosure, are described in detail as follows withreference to the accompanying drawings below:

Embodiment I

As shown in FIG. 1 to FIG. 8, a support for household appliancecomprises:

a hydraulic plate 101;

a sheath 103, which is fixedly connected with the hydraulic plate 101;

a regulating element 104, which is arranged in the sheath 103 and isaxially movable relative to the sheath 103;

an accommodation chamber, which is formed by the hydraulic plate 101,the sheath 103 and the regulating element 104; and

a hydraulic medium 102, which is arranged in the accommodation chamberand is compressed/expands depending on pressure changes to drive theregulating element 104 to axially move in the sheath 103 for leveling.

According to the support for household appliance provided by theembodiment, based on the hydraulic principle, the regulating element canperform adaptive regulation automatically because of the fluidity of thehydraulic medium due to different pressures resulting from unflatness,the hydraulic medium stops circulating until the support for householdappliance achieves balance, and thus, automatic leveling is achieved.

According to the support for household appliance provided by theembodiment, a first mounting structure which is used for being fixedlyconnected with a bottom plate of a household appliance is arranged onthe hydraulic plate 101; and a second mounting structure which is usedfor being fixedly connected with the sheath is arranged on the hydraulicplate.

According to the embodiment, the regulating element 104 is axiallymovably sleeved in the sheath 103, and then the hydraulic plate 101 isfixedly connected with the sheath 103 through the second mountingstructure, so that the independent assembly of the support for householdappliance is achieved. The assembled supports for household appliance isthen integrally mounted on the bottom plate of the household appliancethrough the first mounting structure, and thus, the support forhousehold appliance is mounted on the household appliance.

According to the embodiment, the assembling of the support for householdappliance is achieved through the second mounting structures, thesupport for household appliance is mounted on the household appliancethrough the first mounting structures. And corresponding mounting isachieved through different mounting structures, so that the globalstability of the support for household appliance is ensured, and thestability of mounting of the support for household appliance on thehousehold appliance is also ensured.

In this embodiment, the hydraulic plate 101 of the support for householdappliance is directly fixed to the bottom of the household appliance,the sheath 103 and the hydraulic plate 101 are fixedly connected. Thus,the hydraulic plate 101 is clamped by the bottom of the householdappliance and the sheath 103. So that the strength of fixed connectionbetween the hydraulic plate 101 and the sheath 103 is not necessary, amain purpose of connection between the hydraulic plate 101 and thesheath 103 is to form an integrated support. And the strength of theconnection is irrelevant to the size of gravity of the householdappliance and the size of a supporting force of the regulating element104. Therefore, for the support for household appliance provided by thepresent disclosure, the hydraulic plate 101 and the sheath 103 can berapidly, reliably and fixedly connected, the requirements on thestrength of connection between the hydraulic plate 101 and the sheath103 are lowered, and the essential space and height required by theconnection are further lowered.

In summary, the support for household appliance provided by theembodiment is simpler in structure, simpler and more convenient inmounting, and has better stability.

In addition, in a structural design of the support for householdappliance provided by the embodiment, the overall height of the supportfor household appliance can be further lowered, and thus, the supportfor household appliance has a better shock absorption effect on thehousehold appliance. Taking a washing machine as an example, the supportfor household appliance provided by the present disclosure has a bettershock absorption effect on dewatering vibration of the washing machine.

As a preferred implementation mode of the embodiment, the first mountingstructures are first mounting holes 1013 formed in the hydraulic plate.And the hydraulic plate 101 is fixedly connected to the bottom plate ofthe household appliance in a manner that first connecting members passthrough the first mounting holes 1013.

Concretely, in the embodiment, the first mounting holes 1013 are screwholes, the first connecting members are screws. The mounting holes forthe screws to pass through are formed in the bottom plate of thehousehold appliance, and the screws pass through the mounting holes inthe bottom plate and are mounted to the screw holes in the hydraulicplate 101 to achieve fixed mounting.

Concretely, in the embodiment, the second mounting structures are secondmounting holes 1012, and the hydraulic plate is fixedly connected withthe sheath in a manner that second connecting members pass through thesecond mounting holes.

Further, in the embodiment, the upper end of the sheath 103 is flangedto form a mounting plane 1032, and the mounting plane 1032 is fit withthe bottom surface of the hydraulic plate 101 and is fixedly connectedwith the bottom surface of the hydraulic plate 101. And fourth mountingholes corresponding to the second mounting holes 1012 are formed in themounting plane 1032.

According to the embodiment, the mounting plane 1032 of the sheath 103is fit with the hydraulic plate 101, thus, more pressure can betransferred to the mounting plane 1032 and is dispersed to preventingthe hydraulic plate 101 from bearing too high pressure. Because liquidflow passages for circulation of the hydraulic medium are formed insidethe hydraulic plate 101, the stability of the hydraulic plate 101 is akey of the stabilizing and leveling of the entire support for householdappliance. According to the embodiment, the mounting plane 1032 isformed by the outward flanging of the upper end of the sheath 103, thus,the mounting contact area of the sheath 103 and the hydraulic plate 101is increased, which facilitates the stability and dispersion of thehydraulic plate 101 transmitting force to the mounting plane 1032 of thesheath 103.

In addition, the mounting plane 1032 of the sheath 103 is fit with thehydraulic plate 101 and is fixedly connected with the hydraulic plate101 which avoid a designing of mounting structures on the sheath 103 orhydraulic plate 101 and lowering the overall structure of the supportfor household appliance.

Further, in the embodiment, an outline of the mounting plane 1032 ismatched with that of the hydraulic plate 101, and the mounting plane1032 is fit with the bottom surface of the hydraulic plate 101 and isfixedly connected with the bottom surface of the hydraulic plate 101.Thus, a pressure applied to the hydraulic plate 101 can be bettercorrespondingly transferred to the mounting plane 1032 of the sheath 103to avoid stress concentration caused by the partial contact of thehydraulic plate 101 with the mounting plane 1032, which furtherfacilitates the stable circulation of the hydraulic medium in thehydraulic plate.

Preferably, in the embodiment, the outline of the hydraulic plate 101 issimilar to or the same as that of the mounting plane 1032. Thus, themounting is simpler and more convenient through corresponding thehydraulic plate 101 and the mounting plane 1032.

Concretely, in the embodiment, the sheath 103 comprises a sleeve parthaving a hollow interior, and one end of the regulating element 104 issleeved in the sleeve part and is axially movable relatively. An upperend of the sleeve part is flanged to form the mounting plane 1032, andthe mounting plane 1032 is fit with the bottom surface of the hydraulicplate 101 and is fixedly connected with the bottom surface of thehydraulic plate 101. According to the embodiment, the mounting plane1032 is formed by the outward flanging of the upper end of the sleevepart, the regulating element 104 axially moves in the sheath 103, andonly the area of the mounting plane is enlarged, the whole of the sheath103 is not enlarged. Thus, materials are saved, and the cost is reduced.

Concretely, in the embodiment, the hydraulic plate 101 is of a squareflat-plate structure, the sleeve part is of a cylindrical structure. Anupper end of the cylindrical structure flanges outward to form thesquare mounting plane 1032 which is matched with the hydraulic plate.And the square flat-plate structure is fit with the square mountingplane and is fixedly connected with the square mounting plane.

Concretely, in the embodiment, at least one second mounting structure isarranged at each of four corners of the hydraulic plate; and one firstmounting structure is is provided on at least one side of each secondmounting structure;

preferably, one second mounting hole 1012 is formed at each of the fourcorners of the hydraulic plate 101, and the two sides of each secondmounting hole 1012 are provided with a first mounting hole 1013.

In the embodiment, according to the structure and mountingcharacteristics of the support for household appliance, the firstmounting holes 1013 are more than the second mounting holes 1012, sothat the support for household appliance can be stably mounted on thehousehold appliance. The first mounting holes 1013 are distributed atthe two sides of the second mounting holes 1012, thus, the total weightof the household appliance can be more uniformly distributed on thehydraulic plate 101 to avoid the damage of the hydraulic plate caused bylocal stress concentration.

As a mounting mode of the embodiment, the sheath 103 and the hydraulicplate 101 can be fixedly connected by clamping, adhesive bonding, hotmelt, or welding, and then fixedly mounted on the bottom of thehousehold appliance.

According to the embodiment, the hydraulic plate 101 is made of plasticsthrough integral injection molding or made of metal through die-casting.And the sheath 103 is made of plastics through integral injectionmolding or made of a metallic material through die-casting.

According to stress characteristics of the support for householdappliance provided by the embodiment, preferably, the hydraulic plate101 is made of plastics through integral injection molding. And thesheath 103 is made of metal through die-casting. Due to larger stress onthe sheath 103, the sheath 103 is made of metal through die-casting toguarantee strength, thus, the support for household appliance providedby the embodiment is lower in manufacturing cost, and the overallstrength of the support for household appliance can be guaranteed.

Partial gravity F1 of the household appliance is applied to thehydraulic plate 101 through the bottom plate. The plane of the hydraulicplate 101 can transmit the force to the mounting plane 1032 of thesheath 103. Stress of the interior of the hydraulic plate 101 istransferred to the regulating element 104 through hydraulic pressure,the regulating element 104 similarly bears a supporting force F2 from asupporting surface, the F1 is equal to the F2. And stress of theregulating element 104 is transferred to the plane of the hydraulicplate 101, and the stress is then transferred to the bottom plate of thehousehold appliance by the hydraulic plate 101. By such a design,although the hydraulic plate 101 bears a pressure force of internalliquid flow passages, a partial gravity force of the washing machine andthe supporting force of the regulating element 104, the forces are alltransferred to the mounting plane 1032 of the sheath 103, the regulatingelement 104 and the bottom plate of the household appliance.

As a preferred implementation mode of the embodiment, the support forhousehold appliance provided by the embodiment further comprises aflexible accommodation body 108 with a chamber therein, and thehydraulic medium is accommodated in the flexible accommodation body 108;and a third mounting structure which is used for mounting the flexibleaccommodation body 108 in a sealed manner is arranged on the hydraulicplate 101.

Concretely, the liquid flow passages are formed inside the hydraulicplate 101, the flexible accommodation body 108 has an opening part, andthe opening part of the flexible accommodation body 108 is fixedlymounted on the bottom surface of the hydraulic plate 101 through apressing ring 106 and communicates with the liquid flow passages. Andthe third mounting structures are third mounting holes 1016, and thepressing ring 106 is assembled on the third mounting holes 1016 throughthird connecting members.

Further, in the embodiment, the third mounting hole 1016 is disposed inthe middle part of the hydraulic plate, and the third mounting holeincludes at least four, corresponding to the four corners of thehydraulic plate 101.

As a preferred implementation mode of the embodiment, in the embodiment,the opening part of the flexible accommodation body 108 is fixedlymounted on the bottom surface of the hydraulic plate 101 through thepressing ring 106, and the pressing ring 106 and the hydraulic plate 101jointly press the opening part to deform and seal. According to theembodiment, the pressing ring 106 is used for pressing the opening partto deform for sealing, so that the sealing is simpler and moreconvenient, and the sealing effect is good.

Further, the flexible accommodation body 108 comprises a small-diameterpart, one end part of the small-diameter part is flanged to form theopening part. The pressing ring 106 sleeves on the small-diameter part,the pressing ring 106 and the hydraulic plate 101 jointly press theopening part to deform and seal. According to the embodiment, during thesealed mounting of the flexible accommodation body 108, thesmall-diameter part can be firstly nested in the pressing ring 106, andonly the pressing ring 106 is need to be fixedly mounted. In the processof fastening, the pressing ring 106 presses the opening part to achievethe sealed mounting.

As an implementation mode of the embodiment, a hydraulic plate groove isarranged at the bottom surface of the hydraulic plate 101, and theopening part of the flexible accommodation body 108 is deformed andfilled into the hydraulic plate groove for sealing under pressure of thepressing ring 106. In this mode, sealing can be achieved throughfastening the pressing ring 106 and pressing the opening part of theflexible accommodation body 108 to deform and fill into the hydraulicplate groove. The structure is simple, and the sealing is reliable andeffective.

Preferably, a volume enclosed by the hydraulic plate groove and thepressing ring 106 is smaller than the volume of the opening part of theflexible accommodation body 108. Thus, the opening part of the flexibleaccommodation body 108 can be in tight contact with the hydraulic plategroove to ensure sealing performance.

According to the embodiment, the pressing ring 106 is fixed to thehydraulic plate 101 through fixing devices. And specifically thepressing ring 106 and the hydraulic plate 101 can be fixedly connectedthrough bolts/screws. The pressing ring 106 is provided with a pressingring mounting hole. And the bolts/screws pass through the pressing ringmounting holes and are fastened to the third mounting holes 1016 of thehydraulic plate 101.

According to the embodiment, the flexible accommodation body 108comprises an accommodating body 1081. The accommodating body 1081 is ofa soft capsular structure which has a corrugation structure oftelescopic. And the corrugation structure is arranged in the regulatingelement 104 and extends and retracts depending on the flowing of thehydraulic medium to drive the regulating element 104 to axially move inthe sheath 103 for leveling.

The support for household appliance, provided by the embodiment, furthercomprises a protective member 107 for protecting the flexibleaccommodation body 108. The pressing ring 106 is embedded in theprotective member 107, and then, technical effects as follows areachieved:

1. According to the embodiment, the pressing ring 106 and the protectivering 107 are mounted in an embedded manner so as to limit the positionof pressing ring 106 and prevent the installation of a complicated limitstructure. And this limiting is simple and stable.

2. According to the support for household appliance provided by theembodiment, under extremely high impact pressure (for example, ahousehold appliance or an object equipped with the support for householdappliance falls off or is lifted and suddenly placed), as there is nogap between the protective ring 107 and the pressure exerted fittingsurfaces of the flexible accommodation body 108, so that the flexibleaccommodation body 108 is prevented from problems such as expansioncracking resulting from gaps, and the reliability is improved.

3. According to the embodiment, the pressing ring 106 and the protectivering 107 are mounted in an embedded manner, and the mounting height ofthe pressing ring 106 and the protective ring 107 is lowered, so thatthe overall height of the support for household appliance is lowered.And the influence on the overall center of gravity of the householdappliance caused by mounting the support for household appliance on thehousehold appliance is less, the stability of supporting of thehousehold appliance is better facilitated, and the shock absorptioneffect on vibration of the household appliance during working (forexample, dewatering vibration of the washing machine) is better.

As a preferred implementation mode of the embodiment, a protectivecurved surface 1072 is arranged at one end of the protective ring 107and is matched with an outside surface of the flexible accommodationbody 108 to prevent the flexible accommodation body 108 from beingbroken under pressure.

According to the embodiment, an embedding groove 1071 is formed in theother end of the protective ring 107, and the pressing ring 106 isembedded in the embedding groove 1071 of the protective ring 107.

As a preferred implementation mode of the embodiment, a limiting convexportion is formed on the internal wall of the embedding groove 1071 ofthe protective ring 107, and a limiting concave portion matched with thelimiting convex portion is formed on a fixing member. According to theembodiment, a limiting structure is designed according to the embeddedmounting of the pressing ring 106 and the protective ring 107, andlimiting motion is achieved while carrying out embedded mounting. Andthus, the structure is simple, stable and reliable.

According to the embodiment, the depth of the embedding groove 1071 isgreater than the thickness of the pressing ring 106, thus, the pressingring 106 can be completely embedded into the embedding groove 1071, andthe mounting height is lowered to the maximum to lower the overallheight of the support for household appliance. Meanwhile, when thesupport for household appliance is in an out-of-flat state, eachflexible accommodation body 108 bears different pressure forces, so thehydraulic medium flows, and the flexible accommodation body 108 extendsand retracts to drive the regulating element 104 to axially move in thesheath 103 for leveling. The extending and retracting of the flexibleaccommodation body 108 inevitably acts on the protective ring 107, andthe protective ring 107 axially moves under the embedded limiting of theembedding groove 1071 and the pressing ring 106.

In the embodiment, the circumference of the protective ring 107completely wraps the pressing ring 106, and the protective ring 107 ispressed into the regulating element 104, and thus, the reliability andthe stability of fitting are greatly improved. Therefore, after theprotective ring 107 is pressed into the regulating element 104, theprotective ring 107 will always axially move in the regulating element104 stably, and the moving is smooth and reliable. The entire supportfor household appliance can be more stable because of the protectivering 107 and the regulating element 104, and both the protective ring107 and the pressing ring 106 can have a certain amount of activity upand down.

According to the support for household appliance provided by theembodiment, the sheath 103 and/or the regulating element 104 areprovided with a guiding limiting mechanism which is used for limitingthe circumferential rotation of the regulating element 104 relative tothe sheath 103. And a port 1011 corresponding to the guiding limitingmechanisms is arranged in the hydraulic plate 101.

According to the support for household appliance provided by theembodiment, the household appliance is automatically leveled by usingthe hydraulic principle, and the leveling is simple and reliable. Andthe regulating element 104 is arranged in the sheath 103 in a manner ofbeing capable of axially moving relative to the sheath 103, and theregulation on the household appliance is only limited to a verticaldirection, so that in order to guarantee the stability of leveling, therotation of the regulating element 104 relative to the sheath 103 isneed to be limited. Therefore, the guiding limiting mechanisms are usedfor limiting the regulating element 104 to move along a requireddirection relative to the sheath 103.

As the household appliance (for example, a washing machine) generallywill generate vibration during working, in order to guarantee thestability of running of the household appliance, the overall height ofthe support for household appliance provided by the embodiment should belowered as far as possible to lower the center of gravity of thehousehold appliance. Therefore, the ports 1011 are formed in thehydraulic plate 101 corresponding to the guiding limiting mechanisms.

While meeting the setting of the guide limiting mechanism, it does notaffect the axial movement of the regulating element 104, so as to reducethe overall height of the support for household appliance and improvethe damping stability. Concretely, the guiding limiting mechanismscomprise a guiding limiting groove/a guiding limiting convex portionarranged on the internal wall of the sheath and a guiding limitingconvex portion/a guiding limiting groove correspondingly arranged on theexternal wall of the regulating element. And the guiding limiting convexportions are arranged in the guiding limiting grooves in a relativeslidable manner to limit the circumferential rotation of the regulatingelement relative to the sheath. According to the embodiment, the axialmoving of the regulating element 104 can be limited through thecooperation of the guiding limiting grooves and the guiding limitingconvex portions, and thus, the structure is simple and reliable.

According to the embodiment, the ports 1011 are arranged correspondingto the guiding limiting convex portions/guiding limiting grooves of theregulating element 104, and the regulating element 104 moves towards thehydraulic plate 101. One end of each guiding limiting convexportion/guiding limiting groove of the regulating element 104 enters onecorresponding port 1011. According to the embodiment, in view of theaxial moving of the regulating element 104, only the yielding parts areneed to be arranged corresponding to the guiding limiting convexportions/guiding limiting grooves of the regulating element 104regardless of the type of the guiding limiting mechanisms. So that, onthe premise of not changing regulating height, the overall height of thesupport for household appliance is lowered, and the stability of guidingand limiting is guaranteed.

As a preferred implementation mode of the embodiment, guiding limitinggrooves 1031 are formed in the internal wall of the sheath 103 along anaxial direction of the sheath 103. The guiding limiting convex portionsare arranged on the external wall of the regulating element 104, and theguiding limiting convex portion is relatively slidably disposed in theguiding limiting groove 1031 to limit the circumferential rotation ofthe regulating element 104 relative to the sheath 103.

According to the embodiment, the ports 1011 are formed in the hydraulicplate 101 corresponding to the guiding limiting convex portions. Theregulating element 104 axially moves up and down in the sheath 103, andone end of each guiding limiting convex portion goes into/out of onecorresponding port 1011.

Therefore, according to the support for household appliance provided bythe embodiment, one end of each guiding limiting convex portion goesinto/out of to one corresponding port 1011, so that a greater regulatingheight is achieved under the condition of the same overall height. Andunder the condition of the same regulating height, the support forhousehold appliance provided by the embodiment can have a smalleroverall height.

As a preferred implementation mode of the embodiment, each guidinglimiting convex portion comprises a first guiding limiting block 1041and a second guiding limiting block 1042. The first guiding limitingblocks 1041 are fixed to the external wall of the regulating element104, and the second guiding limiting blocks 1042 are fixed to the firstguiding limiting blocks 1041 and extend by a certain height towards thehydraulic plate 101. According to the embodiment, the first guidinglimiting blocks 1041 mainly play roles in carrying out guiding andlimiting in the guiding limiting grooves 1031, and the second guidinglimiting blocks 1042 prolong the first guiding limiting blocks 1041. Andthus, the stability of guiding and limiting is better.

As a preferred implementation mode of the embodiment, a plurality ofguiding limiting mechanisms are distributed along circumferentialdirections of the sheath 103 and/or the regulating element 104. And aplurality of ports 1011 are formed in the hydraulic plate 101corresponding to the guiding limiting mechanisms. By setting a pluralityof guiding limiting mechanisms, the stability of limiting is furtherimproved, and the effect of guiding and limiting is better.

According to the embodiment, in order to achieve the up-and-downmovement of the regulating element 104 in the sheath 103 and preventcircumferential rotation, a certain quantity of guiding limiting grooves1031 are formed in the circumference of the sheath 103, and the quantityis N which is greater than or equal to 1. In a graphic illustration ofthe present disclosure, N is 4 preferably.

Corresponding guiding limiting convex portions are arranged on thecircumference of the regulating element 104, and the quantity of theguiding limiting convex portions is N which is greater than or equalto 1. In a graphic illustration of the present disclosure, N is 4preferably. The guiding limiting convex portions can move in the guidinglimiting grooves and are limited by stopping end parts 1032 in bottom ofthe guiding limiting grooves 1031 to prevent the regulating element 104from falling off from the sheath 103.

In order to lower the height of the support for household appliance asfar as possible and achieve better stability, the height of a sheath 200and the height of a regulating element 300 can be reduced as far aspossible in principle, particularly the height of a superposed part,i.e. H1 in a graphic illustration, under the condition of not lowering aregulating height H0. When H1 is very small, the limiting function ofthe sheath 200 to the regulating element 300 will be lowered, and theproblems such as biasing of the regulating element 300 are caused.

Embodiment II

As shown in FIG. 1 to FIG. 8, FIG. 20 and FIG. 21, a support forhousehold appliance in the embodiment comprises:

a hydraulic plate 101;

a sheath 103, which is fixedly connected with the hydraulic plate 101;

a regulating element 104, which is arranged in the sheath 103 and isaxially movable relative to the sheath 103;

an accommodation chamber, which is formed by the hydraulic plate 101,the sheath 103 and the regulating element 104; and

a hydraulic medium 102, which is arranged in the accommodation chamberand is compressed/expands depending on pressure changes to drive theregulating element to axially move in the sheath for leveling.

An overall height h and a transverse length D of the support forhousehold appliance are determined by specification parameters of ahousehold appliance with the support.

According to the support for household appliance, provided by theembodiment, based on the hydraulic principle, the regulating element canperform adaptive regulation automatically because of the fluidity of thehydraulic medium due to different pressures resulting from unflatness,the hydraulic medium stops circulating until the support for householdappliance achieves balance, and thus, automatic leveling is achieved.

According to a large quantity of practice results, it can be seen thatthe household appliance leveling effect of the support for householdappliance provided by the embodiment depends on two parameters, i.e. theoverall height h and the transverse length D, to a great extent. With alower overall height h, the overall center of gravity of the householdappliance can be effectively lowered, and the leveling effect is better.With a greater transverse length D, the stability of supporting of thehousehold appliance can be improved, and the leveling effect is better.And with a greater transverse length D, the volume of the accommodationchamber formed by the hydraulic plate 101, the sheath 103 and theregulating element 104 can be increased simultaneously to accommodatemore hydraulic medium, and the leveling effect is better. However, it isnot always the case that the greater the overall height h and thetransverse length D of the support for household appliance are, thebetter the leveling effect is, the leveling effect also depends onfactors such as manufacturing, mounting and cost. Therefore, the overallheight h and the transverse length D of the support for householdappliance provided by the embodiment are determined by the specificationparameters of the household appliance with the foot, and the optimaloverall height h and the optimal transverse length D are determined bythe specification parameters of the household appliance.

Proven by further researches, the regulating effect of the support forhousehold appliance provided by the embodiment depends on a h/D ratio ofthe overall height h to the transverse length D. Concretely, the overallheight h and the transverse length D of the support for householdappliance and a weight m of the household appliance have a relationship:h/D is inversely proportional to m.

As a preferred implementation mode of the embodiment, the overall heighth and the transverse length D of the support for household appliancemeet that: 0<h/D≤10;

preferably, 0.1≤h/D≤1; and

more preferably, 0.4≤h/D≤0.8.

The range of h/D, defined in the embodiment, of the support forhousehold appliance can meet the leveling requirements of 96% householdappliances, and the support for household appliance has a betterleveling effect, is convenient to manufacture and mount and is lower incost. Therefore, the support for household appliance, produced accordingto the h/D range in the embodiment, can be applied to every householdappliance as a standard element, and is more conducive to marketing.

As a preferred implementation mode of the embodiment, the overall heighth of the support for household appliance provided by the embodiment is asum of the height of the regulating element and the height of the sheathwhen the regulating element completely stretches out from the sheath;

preferably, the overall height h of the support for household appliancemeets that: 5 mm≤h≤100 mm; and

further preferably, the overall height h of the support for householdappliance is 25±15 mm.

The range of overall height h, defined in the embodiment, of the supportfor household appliance can meet the leveling requirements of 96%household appliances, and the support for household appliance has abetter leveling effect, is convenient to manufacture and mount and islower in cost.

As a preferred implementation mode of the embodiment, a main body of thesheath 103 is of a cylindrical structure, and the regulating element 104is sleeved in the cylindrical structure and is axially movable. Thetransverse length D of the support for household appliance is a diameterof the sheath;

preferably, the transverse length D of the support for householdappliance meets that: 5 mm≤D≤590 mm; and

further preferably, the transverse length D of the support for householdappliance is 50±30 mm.

The range of transverse length D, defined in the embodiment, of thesupport for household appliance can meet the leveling requirements of96% household appliances, and the support for household appliance has abetter leveling effect, is convenient to manufacture and mount and islower in cost.

Further, in the embodiment, the regulating element 104 is of acylindrical structure, and the diameter of the regulating element 104 isd which meets that: 5 mm≤d≤590 mm; and

preferably, the diameter of the regulating element 104 is d which is50±30 mm.

According to the embodiment, due to the value range of the diameter d ofthe regulating element 104, better supporting stability can be provided.

As a preferred implementation mode of the embodiment, at least twosupports for household appliance communicate with each other throughhydraulic pipes so as to allow the hydraulic medium to flow between thesupports; and a diameter of each hydraulic pipe is d1 and meets that:0.5 mm h; and preferably, the diameter d1 of each hydraulic pipe is 10±9mm.

According to the embodiment, because of the diameter d1 of the hydraulicpipes, the flow velocity of the hydraulic medium can be reduced, andthus, the stability of regulating is better. In addition, in view of thecondition that the household appliance is suddenly stressed, betterbuffering can be achieved, and the damage to the household appliancesupports is prevented, and the service life of each foot for householdappliance is prolonged.

According to the embodiment, the two supports for household appliancecommunicate with each other through a hydraulic pipe to form a supportsgroup for household appliance, and the overall length of the supportsgroup for household appliance is not smaller than the width of thehousehold appliance.

As a preferred implementation mode of the embodiment, the householdappliance is a washing machine, and the overall height h and thetransverse length D of the support for household appliance and acapacity V of the washing machine have a relationship: h/D is inverselyproportional to the V. In view of the washing machine, the stability ofsupporting is mainly affected by weight, and the weight mainly dependson the capacity V of the washing machine.

The range of parameters, defined in the embodiment, of the support forhousehold appliance can meet the leveling requirements of householdappliances, and the support for household appliance has a betterleveling effect, is convenient to manufacture and mount and is lower incost. Therefore, the support for household appliance provided by theembodiment can be applied to every household appliance as a standardelement, and is more conducive to marketing.

Embodiment III

As shown in FIG. 9 to FIG. 13, a support for household appliance in theembodiment comprises:

a hydraulic plate 101;

a sheath 103, which is fixedly connected with the hydraulic plate 101;

a regulating element 104, which is arranged in the sheath 103 and isaxially movable relative to the sheath 103;

an accommodation chamber, which is formed by the hydraulic plate 101,the sheath 103 and the regulating element 104;

a hydraulic medium, which is arranged in the accommodation chamber andis compressed/expands depending on pressure changes to drive theregulating element 104 to axially move in the sheath 103 for leveling;and

throttling structures 500, which are arranged in the hydraulic plate 101for slowing down a flow velocity of the hydraulic medium.

According to the support for household appliance provided by theembodiment, based on the hydraulic principle, the regulating element canperform adaptive regulation automatically because of the fluidity of thehydraulic medium due to different pressures resulting from unflatness,the hydraulic medium stops circulating until the support for householdappliance achieves balance, and thus, automatic leveling is achieved.

According to the support for household appliance provided by theembodiment, the throttling structures 500 are arranged in the hydraulicplate, so that the rapid flowing of the hydraulic medium is prevented,and a regulating process can be more stable. In addition, in view of thecondition that pressure of the support for household appliance changesgreatly, the throttling structures 500 can be well cushioned to avoidthe damage of the support for household appliance caused by the suddenrapid flowing of the hydraulic medium.

As an implementation mode of the embodiment, the throttling structures500 are throttling flow passages arranged in the hydraulic plate, andthe throttling flow passages allows the flowing damping force of thehydraulic medium to increase for reducing the flow velocity of thehydraulic medium.

Referring to FIG. 12, concretely, hydraulic nozzles 1014 are arranged onthe hydraulic plate 101 for allowing the hydraulic medium flowing out.And each throttling flow passage comprises a first throttling flowpassage 501 and a second throttling flow passage 502, one end of thefirst throttling flow passage 501 communicates with the accommodationchamber, the other end of the first throttling flow passage 501communicates with the second throttling flow passage 502, and the secondthrottling flow passage 502 communicates with one hydraulic nozzle 1014.

As a preferred implementation mode of the embodiment, the diameter ofeach first throttling flow passage 501 is greater than that of eachsecond throttling flow passage 502.

Referring to FIG. 13, as a preferred implementation mode of theembodiment, throttling holes 503 are formed at connecting positions ofthe first throttling flow passages 501 and the second throttling flowpassages 502, and the diameter of each throttling hole is smaller thanthat of each of the first throttling flow passages and the secondthrottling flow passages.

The thickness of the hydraulic plate 101 is relatively small, so that aproduction process for forming the throttling flow passages,particularly throttling flow passages with greater length and smallerdiameter, inside the hydraulic plate 101 is difficult. That will resultin production difficulty, complicated process, high cost and lowproductivity. In this mode, throttling is achieved in a throttling holemanner, thus, the restriction on diameters of the throttling flowpassages is lesser, and the diameters of the throttling flow passagescan be relatively greater. The production is easy, and the throttlingeffect is weakened. However, the throttling effect at the throttlingholes is relatively obvious.

Therefore, according to the support for household appliance provided bythe embodiment, throttling is achieved in the throttling hole manner.Thus, the production process is simple, the throttling effect is good,and the hydraulic foot is more stable and reliable.

Concretely, in the embodiment, an end of the first throttling flowpassage 501 forms a throttling hole, and the end is in communicationwith the second throttling flow passage 502, and is reduced in diameter;

or, an end of the second throttling flow passage 502 forms a throttlinghole, and the end communicates with the first throttling flow passage501, and is reduced in diameter.

In order to achieve the throttling effect, in the embodiment, a minimumdiameter d of the throttling flow passages meets that: d6 mm; preferablyd2 mm; and further preferably 1 mm.

Concretely, the diameter of the second throttling flow passages 502 isthe minimum diameter d, or, the aperture of the throttling holes is theminimum diameter d.

As a preferred implementation mode of the embodiment, liquid flowpassages for allowing the hydraulic medium to flow therein are formed inthe hydraulic plate 101, and the throttling structures 500 are arrangedin the liquid flow passages to allow the flowing damping force of thehydraulic medium to increase for reducing the flow velocity of thehydraulic medium. In this case, the throttling structures may be astructure such as a baffle ring or a baffle block fixed in the liquidflow passages to reduce inner diameters of the liquid flow passages.

The support for household appliance provided by the embodiment furthercomprises a flexible accommodation body with a chamber therein. And thehydraulic medium is accommodated in the flexible accommodation body. Theflexible accommodation body has an opening part, and the opening part ofthe flexible accommodation body is fixedly mounted on the hydraulicplate and communicates with the throttling flow passages or the liquidflow passages.

According to the support for household appliance provided by theembodiment, the throttling structures can also play a role instabilizing pressure. For example, when a washing machine sways duringwashing or dewatering or a load to the foot changes, after the hydraulicmedium passes through the throttling structures, the hydraulic pressureand flow velocity are lowered. During the working procedure of thewashing machine, the fluctuation of the hydraulic pressure is relativelysmall, which will not cause the movement of the regulating element to betoo large due to the fluctuation of the hydraulic pressure. Then, thestability of the washing machine can be effectively and automaticallyregulated, and the vibration and noise of the washing machine arefurther reduced.

Embodiment IV

As shown in FIG. 14 to FIG. 19, a support for household appliance in theembodiment comprises:

a hydraulic plate 101;

a sheath 103, which is fixedly connected with the hydraulic plate 101;

a regulating element 104, which is arranged in the sheath 103 and isaxially movable relative to the sheath 103;

an accommodation chamber, which is formed by the hydraulic plate 101,the sheath 103 and the regulating element 104;

a hydraulic medium, which is arranged in the accommodation chamber andis compressed/expands depending on pressure changes to drive theregulating element 104 to axially move in the sheath 103 for leveling;

a communicating device, which communicates at least two householdappliance supports to achieve the circulation of the hydraulic mediumbetween the household appliance supports; and

a throttling structure 300, which is arranged in the communicatingdevice for slowing down a flow velocity of the hydraulic medium.

According to the support for household appliance provided by theembodiment, based on the hydraulic principle, the regulating element canperform adaptive regulation automatically because of the fluidity of thehydraulic medium due to different pressures resulting from unflatness,the hydraulic medium stops circulating until the support for householdappliance achieves balance, and thus, automatic leveling is achieved.

The supports for household appliance provided by the embodimentcommunicate with each other through the communicating devices, thus, thehydraulic medium can flow among the supports to achieve automaticleveling. According to the embodiment, the throttling structures 300 arearranged in the communicating devices, so that the rapid flowing of thehydraulic medium among the household appliance supports is prevented,and a regulating process can be more stable. In addition, in view of thecondition that pressure of the supports changes greatly, the throttlingstructures 300 can be well cushioned to avoid the damage of the supportscaused by the sudden rapid flowing of the hydraulic medium.

As an implementation mode of the embodiment, the communicating devicecomprise a hydraulic pipe 200 and a communicating member 400, and atleast two supports for household appliance are communicated with thesame communicating member 400 through one corresponding hydraulic pipe200 to achieve communicating. The throttling structures 300 are arrangedin the communicating members 400. If the hydraulic pipes 200 are toothin, diameters of hydraulic nozzles connected with the hydraulic pipes200 will also be very small, and the strength of the hydraulic nozzlescan not easily meet requirements in case of too small diameters.Therefore, in this embodiment, the throttling structure 300 is arrangedin the communicating member 400 to be easier to manufacture and reducethe cost.

Concretely, in the embodiment, the throttling flow passage is arrangedin the communicating member 400, both ends of each throttling flowpassage separately communicate with one corresponding hydraulic pipe200. And a flowing damping force of the hydraulic medium is allowed toincrease by the throttling flow passages for reducing the flow velocityof the hydraulic medium.

According to the embodiment, the diameter of the throttling flow passageis smaller than that of hydraulic pipe 200 communicated with thethrottling flow passage; or, each throttling flow passage comprises adiameter-reduced part to form one throttling hole 303.

Concretely, as shown in FIG. 17, a third throttling flow passage 301 isarranged in the communicating member 400. The two ends of the thirdthrottling flow passage 301 respectively pass through two hydraulicnozzles which are used for being communicated with correspondinghydraulic pipes 200. The inner diameter of the third throttling flowpassages 301 is far smaller than that of the hydraulic pipes 200 toachieve a throttling effect.

Or, as shown in FIG. 18 and FIG. 19, a fourth throttling flow passage302 is arranged in the communicating member 400. Two ends of the fourththrottling flow passage 302 respectively pass through two hydraulicnozzles which are used for being communicated with correspondinghydraulic pipes 200. The inner diameter of the fourth throttling flowpassage 302 is slightly smaller than that of the hydraulic pipes 200.The fourth throttling flow passage 302 comprises a diameter-reduced partto form one throttling hole 303.

A production process for forming the throttling flow passages,particularly throttling flow passages with greater length and smallerdiameter, in the communicating members 400 is difficult. Thus, theproblems such as production difficulty, complicated process, high costand low production efficiency will be caused. According to the mode,throttling is achieved in a throttling hole manner, thus, therestriction on diameters of the throttling flow passages is lesser. Thediameters of the throttling flow passages can be relatively greater tobe easier to manufacture, and the throttling effect is weakened.However, the throttling effect at the throttling holes is relativelyobvious.

Further, a pouring port 404 is arranged in the communicating members 400which is used for pouring the hydraulic medium. A sealing device ismounted on the pouring port 404 in a sealing manner. And the throttlingflow passages pass through the pouring ports.

As shown in FIG. 18, the diameter of connecting position of thethrottling flow passages and the pouring ports is reduced to form thethrottling holes 303.

Or, as shown in FIG. 19, diameters of a middle part of the throttlingflow passages located at one side of the pouring port 404 is reduced toform the throttling hole 303.

As a preferred implementation mode of the embodiment, the pouring port404 is a screw hole, and the sealing device comprise a bolt 403 and asealing ring 402. The bolt 403 is mounted in the screw hole 404, and thesealing ring 402 is arranged between the bolt 403 and the screw hole forsealing connection.

According to the embodiment, the pouring ports are of counterborestructures, grooves 401 are formed in opening ends of the counterborestructures, and the sealing rings 402 are arranged in the grooves 401.

Preferably, in the embodiment, a minimum diameter d of the throttlingflow passages meets that: d≤6 mm; preferably d≤2 mm; and furtherpreferably d≤1 mm.

As an implementation mode of the embodiment, the hydraulic nozzles arearranged on the hydraulic plate for allowing the hydraulic medium toflow out. The two supports for household appliance communicate with eachother through one hydraulic pipe. And the diameter of the hydraulic pipeis smaller than that of the hydraulic nozzle. And thus, a flowingdamping force of the hydraulic medium is increased to reduce the flowvelocity of the hydraulic medium. According to the embodiment, theobject of throttling can also be achieved through reducing the diameterof the hydraulic pipe.

As an implementation mode of the embodiment, liquid flow passages forflowing of the hydraulic medium are formed in the communicating devices400. The throttling structures are arranged in the liquid flow passagesto allow the flowing damping force of the hydraulic medium to increasefor reducing the flow velocity of the hydraulic medium. In this case,the throttling structures may be structures such as baffle rings orbaffle blocks fixed in the liquid flow passages to reduce innerdiameters of the liquid flow passages.

Embodiment V

The support for household appliance, provided by the embodiment,comprises a hydraulic plate 101, which is internally provided with athrottling flow passage; a sheath 103, which is fixedly connected withthe hydraulic plate 101; a regulating element 104, which is arranged inthe sheath 103 and is axially movable relative to the sheath 103; anaccommodation chamber, which is formed by the hydraulic plate 101, thesheath 103 and the regulating element 104; and a flexible accommodationbody 108, which accommodates a hydraulic medium and is arranged in theaccommodation chamber. The flexible accommodation body 108 extends andretracts to drive the regulating element 104 to axially move in thesheath 103 for leveling under the action of pressure. The support forhousehold appliance further comprises a rubber gasket 105 which is fixedto the bottom of the regulating element 104. The bottom of the rubbergasket 105 has designed patterns, thus, the friction force to the groundis increased, and the stability is enhanced.

Embodiment VI

The embodiment also provides a household appliance with the support forhousehold appliance provided by any one of the above-mentionedembodiments. The household appliance comprises a casing, and a pluralityof supports are mounted at the bottom of the casing. And a hydraulicmedium filled in the household appliance supports 100 can flow among thehousehold appliance supports for leveling.

Preferably, at least two supports 100 communicate with each otherthrough communicating devices to achieve the flowing of the hydraulicmedium among the household appliance supports.

According to the embodiment of the present disclosure, taking a washingmachine for example, a principle and a method for automatic leveling ofthe washing machine by using the support for household applianceprovided by the present disclosure are elaborated. After the washingmachine is mounted, different supports are different in horizontalheight due to an out-of-flat ground surface, and the supports located atpits of the ground surface are low in position. Thus, the householdappliance supports at high positions firstly bear the weight of thewashing machine and bear a large gravity force, and the supports at lowpositions bear a smaller gravity force or failure of support problem.

Regulating elements of the supports for household appliance at highpositions move up under high pressure, and heights of the entiresupports are reduced, thus, volumes of hollow chambers of flexibleaccommodation bodies full of the hydraulic medium are compressed andreduced. The hydraulic medium is forced to enter throttling holes orvalve holes and enter into the supports at low positions throughhigh-pressure pipes. Thus, the hydraulic medium in flexibleaccommodation bodies of the supports for household appliance at lowpositions becomes more and more, and the flexible accommodation bodiesare expanded to promote the stretching of the regulating elements.

When the supports at high positions and the supports at low positionsare the same in hydraulic pressure, the hydraulic medium does not flowthrough the high-pressure pipes any more. Relative positions of theregulating elements and a bottom plate of the washing machine do notchange any more, and the automatic regulating of the washing machine iscompleted.

During the washing or dewatering process of the washing machine, thehydraulic medium can also slowly flow for self-leveling, so thatvibration noises of the washing machine are greatly lowered.

According to the embodiment, the hydraulic medium may be hydraulic fluidwhich is good in fluidity and stable in ingredient.

In addition, the support for household appliance provided by each of theabove-mentioned embodiments of the present disclosure, can also beapplied to household appliances such as electric refrigerators, coolersand air-conditioner indoor units, besides washing machines.

It should be noted that each of the above-mentioned embodiments of thepresent disclosure can be implemented independently and can also beimplemented by combining a plurality of embodiments.

What described above are only preferred embodiments of the presentdisclosure, but are not intended to limiting the scope of the presentdisclosure in any forms. Although the present disclosure has beendisclosed in terms of preferred embodiments, it is not limited thereto.Without departing from the scope of the technical solution of thepresent disclosure, any persons skilled in the present disclosure canmake equivalent embodiments with various alterations and modificationsas equivalent variations by utilizing the above-mentioned technicalcontents. However, without departing from the contents of the technicalsolution of the present disclosure, any simple changes, equivalentvariations and modifications made according to the technical essence ofthe present disclosure shall all be covered within the scope of thetechnical solution of the present disclosure.

The invention claimed is:
 1. A support for household appliance, comprising: a hydraulic plate; a sheath, fixedly connected with the hydraulic plate; a regulating element arranged in the sheath and configured to be axially movable relative to the sheath, the regulating element configured to be driven by a hydraulic medium; and an accommodation chamber formed by the hydraulic plate, the sheath and the regulating element for containing the hydraulic medium; wherein the hydraulic plate includes a first mounting hole and a second mounting hole, the hydraulic plate configured to be fixedly connected to a bottom plate of a household appliance in a manner that a first connecting member passes through the first mounting hole, and the hydraulic plate is fixedly connected with the sheath in a manner that a second connecting member passes through the second mounting hole, an upper end of the sheath is flanged to form a mounting plane, and the mounting plane is fit with a bottom surface of the hydraulic plate and is fixedly connected with the bottom surface of the hydraulic plate, and an overall height h and a transverse length D of the support for household appliance and a weight m of the household appliance have a relationship: h/D is inversely proportional to m.
 2. The support for household appliance according to claim 1, wherein the overall height h of the support for household appliance is a sum of a height of the regulating element and a height of the sheath when the regulating element completely stretches out from the sheath.
 3. The support for household appliance according to claim 1, wherein a main body of the sheath is of a cylindrical structure, and the regulating element is sleeved in the cylindrical structure and is axially movable, and the transverse length D of the support for household appliance is a diameter of the sheath.
 4. The support for household appliance according to claim 3, wherein the regulating element is of a cylindrical structure, and a diameter d of the regulating element meets: 5 mm≤d≤590 mm.
 5. The support for household appliance according to claim 1, wherein the overall height h and the transverse length D of the support for household appliance meet: 0<h/D≤10.
 6. The support for household appliance according to claim 1, wherein at least two supports for household appliance communicate with each other through hydraulic pipes so as to allow the hydraulic medium to flow between the supports; and a diameter d1 of each hydraulic pipe meets: 0.5 mm≤d1≤h.
 7. The support for household appliance according to claim 6, wherein the two supports for household appliance communicate with each other through a hydraulic pipe to form a supports group for household appliance, and an overall length of the supports group for household appliance is not smaller than the width of the household appliance.
 8. A household appliance with the support for household appliance according to claim
 1. 9. The household appliance according to claim 8, wherein the household appliance is a washing machine, and the overall height h and the transverse length D of the support for household appliance and a capacity V of the washing machine have a relationship: h/D is inversely proportional to the V.
 10. The support for household appliance according to claim 2, wherein the overall height h of the support for household appliance meets: 5 mm≤h≤100 mm.
 11. The support for household appliance according to claim 10, wherein the overall height h of the support for household appliance is 25±15 mm.
 12. The support for household appliance according to claim 3, wherein the transverse length D of the support for household appliance meets: 5 mm≤D≤590 mm.
 13. The support for household appliance according to claim 12, wherein the transverse length D of the support for household appliance is 50±30 mm.
 14. The support for household appliance according to claim 4, wherein the diameter d of the regulating element is 50±30 mm.
 15. The support for household appliance according to claim 5, wherein the overall height h and the transverse length D of the support for household appliance meet: 0.1≤h/D≤1.
 16. The support for household appliance according to claim 15, wherein the overall height h and the transverse length D of the support for household appliance meet: 0.4≤h/D≤0.8.
 17. The support for household appliance according to claim 6, wherein a diameter d1 of each hydraulic pipe is 10±9 mm.
 18. The support household appliance according to claim 1, comprising: the hydraulic medium, the hydraulic medium being compressible/expandable depending on pressure changes. 